Tool clamp for thin plate finish machining

Abstract

The utility model belongs to the technical field of work fixtures, and particularly discloses a work fixture for thin plate finish machining, which comprises a shell, a lifting plate, a thin plate, a jacking device and a supporting bolt, and the shell comprises a shell frame and a central connecting frame; a clamping groove A is formed in the inner side wall of the shell frame, and a through hole is formed in the upper end face of the center connecting frame. A suction cup is arranged at the upper end of the lifting plate, a clamping groove B is formed in the outer side wall of the lifting plate, and a groove C is formed in the lower end face of the lifting plate; the supporting bolt is arranged in the groove C; the lifting plate is mounted in the inner hole of the shell through the clamping groove B; the thin plate is installed on the upper end face of the lifting plate, and a jacking device is arranged in a gap between the thin plate and an inner hole of the shell. The clamp is simple in structure, convenient to operate and wide in application range; the device can be used for processing thin plates with different thicknesses by adjusting the length of the supporting bolt; the clamp is additionally provided with a length-adjustable jacking device, and is suitable for processing thin plates with different lengths and widths.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to a tooling and fixture for precision machining of thin plates. Background Technology

[0002] In machining, finishing the upper surface of thin plates is a challenging process. Due to the thinness and light weight of the plates, traditional methods using clamps to hold them in place can lead to a thickness difference between the center and edges of the plate during machining. If this difference exceeds the required process specifications, it results in scrap and waste. Furthermore, if the clamping is too light, the plate is prone to radial displacement during machining, posing a safety hazard. While some existing thin plate machining uses fixtures for ease of use, these fixtures are height-independent and only suitable for plates of a certain thickness. Different fixtures must be used for plates of varying thicknesses, further wasting material. Therefore, a solution to this problem is urgently needed. Utility Model Content

[0003] In view of the problems existing in the background art, the present invention provides a tooling fixture for the precision machining of thin plates.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a tooling fixture for precision machining of thin plates, comprising a shell, a lifting plate, a thin plate, a clamping device, and supporting bolts. The shell is a square flat plate with an inner hole in the middle and a flat upper surface. The shell includes a shell frame and a central connecting frame. The shell frame is a hollow square frame with a groove A on the outer side wall and a vertical fixing hole on the lower surface of the groove A. The inner side wall of the shell frame has a slot A. The central connecting frame is fixed to the lower end of the inner side wall of the shell frame and has a through hole on its upper surface.

[0005] The lifting plate is a flat plate with a flat upper surface. The lifting plate is adapted to the inner hole of the outer shell. Multiple through holes are provided on the upper surface of the lifting plate, and suction cups are installed in the through holes. The suction cups are connected to the inner wall of the through holes through a fixing bracket. The outer wall of the lifting plate is provided with a slot B, which is adapted to slot A. The lower surface of the lifting plate is provided with a groove C, which corresponds to the position of the through holes. The upper end of the support bolt is located in the groove C, and the lower end of the support bolt passes through the through hole. A support nut is fitted on the outer wall of the support bolt, and the support nut is located between the groove C and the through hole.

[0006] The lifting plate is installed in the inner hole of the outer shell through the slot B; the thin plate is installed on the upper end surface of the lifting plate, the lower end surface of the thin plate is in contact with the upper end surface of the lifting plate, the left end surface of the thin plate is in contact with the left end surface of the inner hole of the outer shell, and the rear end surface of the thin plate is in contact with the rear end surface of the inner hole of the outer shell; a clamping device is provided in the gap between the thin plate and the inner hole of the outer shell.

[0007] The upper and lower surfaces of the lifting plate are parallel to each other.

[0008] The upper surface of the suction cup is provided with a soft sealing gasket, and the height of the upper surface of the sealing gasket is slightly higher than the height of the upper surface of the lifting plate; the air outlet of the suction cup is provided with a connector, which is connected to an external low-pressure pump through a pipe.

[0009] The groove C is a hexagonal groove, and the depth of the groove C is not less than the height of the upper end of the support bolt.

[0010] The upper end of the support bolt is a hexagonal prism, which is adapted to the groove C; the diameter of the lower end of the support bolt is greater than the inner diameter of the through hole; the outer diameter of the support nut is greater than the inner diameter of the through hole.

[0011] The upper end face of the clamping device is at a lower horizontal height than the upper end face of the thin plate; the clamping device includes a clamping nut and a clamping bolt; the clamping bolt is threadedly installed in the threaded hole of the clamping nut.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a tooling fixture for the precision machining of thin plates. This fixture has a simple structure, is easy to operate, and has a wide range of applications. By adjusting the length of the support bolts, it can be used for machining thin plates of different thicknesses. This fixture has added an adjustable length clamping device, which is suitable for machining thin plates of different lengths and widths. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention.

[0014] Figure 2 This is a cross-sectional view of AA.

[0015] Figure 3 This is a cross-sectional view of BB.

[0016] Figure 4 This is a top view of the outer casing.

[0017] Figure 5 This is a cross-sectional view of the EE.

[0018] Figure 6 This is a top view of the lifting platform.

[0019] Figure 7 This is a CC cross-sectional view.

[0020] Figure 8 This is a cross-sectional view of DD.

[0021] Figure 9 This is the front view of the clamping device.

[0022] Figure 10 This is the front view of the support bolt.

[0023] Figure 11 This is a top view of the support bolts.

[0024] In the diagram: 1. Outer shell, 2. Lifting plate, 3. Thin plate, 4. Tightening device, 5. Support bolt, 6. Support nut, 11. Outer shell frame, 12. Central connecting frame, 13. Through hole, 14. Slot A, 15. Groove A, 16. Fixing hole, 17. Groove B, 22. Slot B, 23. Suction cup, 24. Fixing frame, 25. Sealing gasket, 26. Groove C, 41. Tightening nut, 42. Tightening bolt Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] The following is in conjunction with the appendix Figure 1-11 The specific embodiments of this utility model are further described in detail below: A tooling fixture for precision machining of thin plates includes a housing 1, a lifting plate 2, a thin plate 3, a clamping device 4, and supporting bolts 5. The housing 1 is a square flat plate with an inner hole in the middle and a flat upper surface. The housing 1 includes a housing frame 11 and a central connecting frame 12. The housing frame 11 is a hollow square frame with a groove A15 on its outer side wall and a vertical fixing hole 16 on the lower surface of the groove A15. The fixing hole 16 can be secured by bolts. The tooling fixture is installed on the machine tool's worktable. The main function of the groove A15 is to facilitate the installation of the tooling fixture on the machine tool's worktable, and at the same time, to reduce the overall weight of the tooling fixture for easy handling. The inner wall of the outer shell frame 11 is provided with a slot A14. The central connecting frame 12 is fixedly connected to the lower end of the inner wall of the outer shell frame 11. The upper end face of the central connecting frame 12 is provided with a through hole 13, and the lower end face of the central connecting frame 12 is provided with multiple grooves B17. The function of the grooves B17 is to reduce the overall weight of the central connecting frame 12 for easy handling.

[0027] The lifting plate 2 is a flat plate with a flat upper surface that is parallel to its lower surface. The lifting plate 2 is fitted to the inner hole of the outer casing 1. Multiple through holes are provided on the upper surface of the lifting plate 2, and suction cups 23 are installed within these holes. A soft sealing gasket 25 is provided on the upper surface of the suction cup 23, with the upper surface of the sealing gasket 25 slightly higher than the upper surface of the lifting plate 2. When the thin plate 3 is installed on the upper surface of the lifting plate 2, the sealing gasket 25 is compressed under pressure, sealing the suction cup 23 and the thin plate 3 to prevent air leakage. The air outlet of the suction cup 23 has a connector, which... The pipeline is connected to an external low-pressure pump. When the low-pressure pump is turned on, it can extract the air from the suction cup 23, thereby fixing the thin plate 3 to the upper surface of the lifting plate 2. The suction cup 23 is connected to the inner wall of the through hole through the fixing bracket 24. The outer wall of the lifting plate 2 is provided with a slot B22, which is compatible with the slot A14. The lifting plate 2 is installed in the inner hole of the outer shell 1 through the slot B22. In actual use, the lifting plate 2 can slide up and down under the action of the slot B22 and the slot A14, which makes it easy to adjust the height of the lifting plate 2, so as to adapt to the processing of thin plates of various thicknesses.

[0028] A groove C26 is provided on the lower end surface of the lifting plate 2, corresponding to the position of the through hole 13. The groove C26 is a hexagonal groove, and its depth is not less than the height of the upper end of the support bolt 5. The upper end of the support bolt 5 is located in the groove C26, and the lower end of the support bolt 5 passes through the through hole 13. A support nut 6 is fitted on the outer wall of the support bolt 5, located between the groove C26 and the through hole 13. The upper end of the support bolt 5 is a hexagonal prism, which is adapted to the groove C26. The upper end of the support bolt 5 is located in the groove C26. When the operator rotates the support nut 6, The support bolt 5 does not rotate; in this embodiment, a hexagonal groove and a hexagonal column are used as examples. In actual use, if the same effect can be achieved, their shapes can be changed, such as square holes and square columns; the diameter of the lower end of the support bolt 5 is greater than the inner diameter of the through hole 13; the outer diameter of the support nut 6 is greater than the inner diameter of the through hole 13; in actual use, when it is necessary to adjust the height of the lifting plate 2, the support nut 6 is rotated with a wrench. By adjusting the position of the support nut 6, the height of the lifting plate 2 can be adjusted; in order to facilitate the use of a wrench to rotate the support nut 6, a through hole can be provided at an appropriate position on the outer shell 1 to allow the wrench to pass through;

[0029] The thin plate 3 is installed on the upper end face of the lifting plate 2. The lower end face of the thin plate 3 is in contact with the upper end face of the lifting plate 2. The left end face of the thin plate 3 is in contact with the left end face of the inner hole of the outer shell 1. The rear end face of the thin plate 3 is in contact with the rear end face of the inner hole of the outer shell 1. A clamping device 4 is provided in the gap between the thin plate 3 and the inner hole of the outer shell 1. The horizontal height of the upper end face of the clamping device 4 is less than the horizontal height of the upper end face of the thin plate 3 to prevent the clamping device 4 from interfering with the cutting tool during processing. The clamping device 4 includes a clamping nut 41 and a clamping bolt 42. The tightening bolt 42 is threaded into the threaded hole of the tightening nut 41. The length of the tightening device 4 can be adjusted by rotating the tightening bolt 42 with a wrench. In this embodiment, the length of the thin plate 3 is less than the length of the lifting plate 2. The tightening device 4 is provided on the right end face of the thin plate 3. In actual use, the tightening device 4 can be appropriately added or removed in different places according to the difference in length and width between the thin plate 3 and the lifting plate 2. The length of the tightening device 4 can also be appropriately replaced with tightening nuts 41 and tightening bolts 42 of different lengths according to different situations.

[0030] The usage process of this utility model is as follows: First, the outer shell 1 of this tooling is installed on the worktable of the machine tool through the fixing hole 16; then, the lifting plate 2 is installed in the inner hole of the outer shell 1 through the slot, and the lifting plate 2 is adjusted to an appropriate height using the support bolt 5 and the support nut 6; finally, the thin plate 3 is installed on the upper end surface of the lifting plate 2, the lower end surface of the thin plate 3 is in contact with the upper end surface of the lifting plate 2, the left end surface of the thin plate 3 is in contact with the left end surface of the inner hole of the outer shell 1, and the rear end surface of the thin plate 3 is in contact with the rear end surface of the inner hole of the outer shell 1; and according to the thin plate 3... The length and width difference between plate 3 and lifting plate 2 are adjusted by setting a clamping device 4 at an appropriate position to fix plate 3. After installation, the external low-pressure pump is started, which can extract the air from the suction cup 23, thereby firmly fixing plate 3 to the upper surface of lifting plate 2. The machine tool is started to perform milling operation. After milling, a new plate 3 can be replaced for processing. When it is necessary to process plates 3 of different thicknesses, the height of lifting plate 2 can be adjusted by rotating the support nut 6 with a wrench, so as to accommodate plates 3 of different thicknesses.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0032] The parts of this utility model not described in detail are existing technologies.

Claims

1. A tooling fixture for finishing thin plates, comprising a housing (1), a lifting plate (2), a thin plate (3), a clamping device (4), and support bolts (5), characterized in that: The outer shell (1) is a square plate with an inner hole in the middle and a flat surface on the upper end. The outer shell (1) includes an outer shell frame (11) and a central connecting frame (12). The outer shell frame (11) is a hollow square frame with a groove A (15) on the outer side wall and a vertical fixing hole (16) on the lower end of the groove A (15). The inner side wall of the outer shell frame (11) has a slot A (14), and the central connecting frame (12) is fixed to the lower end of the inner side wall of the outer shell frame (11). The upper end of the central connecting frame (12) has a through hole (13). The lifting plate (2) is a flat plate with a flat upper surface. The lifting plate (2) is adapted to the inner hole of the outer shell (1). The upper surface of the lifting plate (2) is provided with multiple through holes, and a suction cup (23) is provided in the through hole. The suction cup (23) is connected to the inner wall of the through hole through a fixing frame (24). The outer wall of the lifting plate (2) is provided with a slot B (22), which is adapted to the slot A (14). The lower surface of the lifting plate (2) is provided with a groove C (26), which corresponds to the position of the through hole (13). The upper end of the support bolt (5) is located in the groove C (26), and the lower end of the support bolt (5) passes through the through hole (13); a support nut (6) is sleeved on the outer wall of the support bolt (5), and the support nut (6) is located between the groove C (26) and the through hole (13); The lifting plate (2) is installed in the inner hole of the outer shell (1) through the slot B (22); the thin plate (3) is installed on the upper end surface of the lifting plate (2), the lower end surface of the thin plate (3) is in contact with the upper end surface of the lifting plate (2), the left end surface of the thin plate (3) is in contact with the left end surface of the inner hole of the outer shell (1), and the rear end surface of the thin plate (3) is in contact with the rear end surface of the inner hole of the outer shell (1); a clamping device (4) is provided in the gap between the thin plate (3) and the inner hole of the outer shell (1).

2. The tooling fixture for precision machining of thin plates according to claim 1, characterized in that: The upper and lower surfaces of the lifting plate (2) are parallel to each other.

3. The tooling fixture for precision machining of thin plates according to claim 1, characterized in that: The upper surface of the suction cup (23) is provided with a soft material sealing gasket (25), and the height of the upper surface of the sealing gasket (25) is slightly higher than the height of the upper surface of the lifting plate (2); the air outlet of the suction cup (23) is provided with a connector, and the connector is connected to an external low-pressure pump through a pipe.

4. The tooling fixture for precision machining of thin plates according to claim 1, characterized in that: The groove C (26) is a hexagonal groove, and the depth of the groove C (26) is not less than the height of the upper end of the support bolt (5).

5. A tooling fixture for precision machining of thin plates according to claim 4, characterized in that: The upper end of the support bolt (5) is a hexagonal column, and the upper end of the support bolt (5) is adapted to the groove C (26); the diameter of the lower end of the support bolt (5) is greater than the inner diameter of the through hole (13); the outer diameter of the support nut (6) is greater than the inner diameter of the through hole (13).

6. The tooling fixture for precision machining of thin plates according to claim 1, characterized in that: The upper end face of the clamping device (4) is at a horizontal height less than the upper end face of the thin plate (3); the clamping device (4) includes a clamping nut (41) and a clamping bolt (42); the clamping bolt (42) is threaded into the threaded hole of the clamping nut (41).

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